Percolator.



UNITED STATES v PATENT OFFICE.

HENRY C. WRIGHT, OF BRISTOL, CONNECTICUT, ASSIGNOR TO AMERICAN SILVERCOMPANY, OF BRISTOL, CONNECTICUT, A CORPORATION.

PE RCOL'ATOR.

Specification of Letters Patent.

Patented Nov. 13, 1906.

- T aZZ whom it may concern.-

Be it known that I, HENRY C. WRIGHT, a citizen of the United States,residing at Bristol, in the county of Hartford and State of Connecticut,have'invented certain new and useful Improvements in Percolators, ofwhich the followin is a specification.

My invention re ates to improvements in percolators; and the main objectof my improvement is efficiency in operation, particularly withreference to the fountain mechanism.

In the accompanying drawings, Figure 1 is a sectional elevation on theline X X of Fig. 2 of the fountain mechanism and so much of a percolatoras is necessary to show its connection therewith, the upper parts beingbroken away. Fig. 2 is a reverse plan view of the fountainbase and partscarried thereby. Fig. 3 is a central vertical section of one of thevalves for the fountain mechanism.

A designates the lower part of the perco lator vessel, the upper part ofwhich (not shown) may be of any ordinary construction. At the bottom ofthe vessel A there is a central depression 4 for a generating-chamber,which chamber or de ression is substantially closed at the top by t efountain-base 5, that is seated in the upper part of this depression inany proper manneras, for example, on the shoulder 6. The fountain-base 5is substantially in the form of a cup that is closed by the cap or cover7 and made liquid and air tight, so. as to form an air-chamber 8 for aheat-insulator between the generatingchamber and the body of the vessel.An or dinary percolator or fountain-tube 9 extends upwardly from thegenerating-chamber and communicates therewith in the ordinary manner forejecting the liquid from the chamber upwardly through the said tube. Thegenerating-chamber communicates with the vessel for supplying the saidchamber with liquid from the vessel by means of one or more barrels orcylinders 10, having each a head with a central port and valve-seat 11.

Within each cylinder is a hollow floatvalve 12, made air-tight andpreferably with a cylindrical body 13, while the valve proper, 12, is ofa spheroidal form, as shown. The complete valve is a little shorter thanthe barrel or cylinder 10, so that it may move in the endwise directionwithin the said barrel to open andclose'the parts 11. Stops 14at thelower end of the barrels retain the valves therein. These stops may beformed in any proper manner, the stops, as shown, being in the form oflugs integral with the side of the barrel and bent into the positionshown. For convenience of illustration the valves are shown centrallyand upright, but with only liquid in the percolator they'would lean overto one side. The valves being hollow, airtight, and of'thin metal willfloat in the liquid and always riseto their closing osition when thevessel is char ed and the liquid is at rest. Pressure wit thegeneratingchamber when the chamber is subjected to the proper heat willforce the liquid up through the tube and. tightly close the valves,

so that the tube 9 is practically the only aveone stop for them to restupon, and with no i and insulates the main com artment of the vesselfrom the generating-c amber, thereby largely confining the heat to thesaid chamber and making the heat therein more effective than it would beif the chamber was not thus insulated. This insulation and the valvestaken together make a very eifective fountain mechanism. Prior patentsshow valveless percolators with an insulating air space between the mainpart of the vessel and the generating-chamber, and other pat-v of thesaid chamber, a fountain-tube leading upwardly therefrom, a barrelmounted on the said fountain-base andhaving a port with valve seat itsupper and, am a hwliow fioa'tmg valve, confined Within the 58,1 21oz-LIFTER and $0 010% smd pa t.

2. ha 'psrcsia'mr, time) wmbimtisn a? vessal having a generatingwhamberat its bottom with a fountain base orming 5313s mp 05 the said chamber,a founmimtube leading upwmdly tharsefium, bane mounted. an t a saidfountain-base and having a part with alve-seznt at its upper 931d, anda, hol- EQW floating valve in the for 05 a, cylinder a spheroidal upperend 5 acting on 5216 valvwssm 011 511 5 pox-vb.

Pin & psrcnhtm, 3h

a, gsnamt wa s-5m 1703mm with a fmuntain base forming fihe top of thesaid chamber, a, never which with the said fountaiwbmse farms aninciosed airspace for insulating the generating-shamber from the main.portinn. oi the vessel, a faunmm-wbe ax isending upwardly from thegenermingwhambm' through the said fsuntain base and six-31206, a barrelwilt-Ended through nil said flif-fiPl-GG and having a port andVZQVB-Sfifl'i) at its upper end and & valva Within tha said barrel T01closing the said art.

I w O. WRIUHT.

